Rival MPs could break with tradition and sit together in the House of Commons when they pay tribute to MP Jo Cox tomorrow.

Labour leader Jeremy Corbyn said he is considering the idea, while Leader of the House Chris Grayling said MPs should “do what they feel comfortable doing.”

Parliament has been recalled on Monday to allow MPs to remember Ms Cox, who was killed in her constituency of Batley and Spen in West Yorkshire on Thursday.

Neighbouring Labour MP Jason McCartney, who represents Colne Valley, has written to Speaker John Bercow requesting that backbenchers be permitted to sit together across the House in a mark of solidarity.

Asked about the idea on the BBC’s Andrew Marr Show, Mr Corbyn said: “I received that suggestion last night actually and we’re thinking about that and have a talk tomorrow, but tomorrow is going to be a dignified occasion, it’s not going to be a time for lots of long speeches.”

He added: “An MP has died. It’s an attack on all of us. In her memory we have to create a more tolerant society. In her memory we have to reach out.”

Asked about the rules of the house, Chris Grayling, leader of the House, said: “I don’t think there are any formal rules but I think for tomorrow’s event it is a celebration and a commemoration and an expression of profound sadness and to my mind it is an occasion where people should do what they feel comfortable doing.”

Meanwhile, leader of the Liberal Democrats Tim Farron said it is a “great idea” and would show that MPs are “united against hate”.

Thousands of people are expected to attend events around the world on Wednesday to celebrate what would have been Labour MP Jo Cox’s birthday.

Mrs Cox would have been 42, and commemorations are being planned to celebrate her “warmth, love, energy, passion and flair.”

The MP shares the same birthday with Bernard Kenny, the pensioner who was injured when he stepped in to try to help her as she was shot and stabbed to death, who will be 78.

Events are being held in Mrs Cox’s constituency of Batley and Spen while a main commemoration will take place in London’s Trafalgar Square which will be preceded by a floating commemoration on the River Thames.

People are also expected to gather and mark her birthday in Brussels, New York, Washington and Nairobi.

Her family and friends said in a statement: “Our gift to her, her family and all those who loved and cherished her, will be to come together to show the world there is more that unites us than divides us.

“The coming together of thousands of people in love and solidarity with Jo proves the strength of her ideas and values.

“Supporters will come together to celebrate what Jo’s warmth, love, energy, passion, flair, Yorkshire heritage and belief in the humanity of every person in every place, from Batley and Spen to Aleppo and Daraya.”

They said the events will be “both a celebration of Jo’s life and a collective calling to action to give a voice to the voiceless and to treat everyone with respect and dignity, especially those we disagree with.”